An issue with .csv file upload

[Peony]

I've create .csv file with come data (example is below). When I Load this file into the "edit script" the 2-nd and 11th item still stay as string without separating into the columns.

How can I to separate the rows into columns while loading?

Product_Id,Product_Line,Product_category,Product_Subcategory

1,Sporting Goods,Outdoor Recreation,Winter Sports & Activities

2,"Food, Beverages & Tobacco",Food Items,Fruits & Vegetables

3,Apparel & Accessories,Clothing,Uniforms

4,Sporting Goods,Athletics,Rugby

5,Health & Beauty,Personal Care

6,Arts & Entertainment,Hobbies & Creative Arts,Musical Instruments

7,Arts & Entertainment,Hobbies & Creative Arts,Orchestra Accessories

8,Arts & Entertainment,Hobbies & Creative Arts,Crafting Materials

9,Hardware,Tool Accessories,Power Tool Batteries

10,Home & Garden,Bathroom Accessories,Bath Caddies

11,"Food, Beverages & Tobacco",Food Items,Frozen Vegetables

12,Home & Garden,Lawn & Garden,Power Equipment

[Peony]

Thank you! It really helps.